VACMS-28709 In This Section a11y fix

[chriskim2311]

Summary

Related issue(s)

department-of-veterans-affairs/va.gov-team#28709

Testing done

Testing URL: /health-care/family-caregiver-benefits/

When testing this we go to the above URL using a mobile view. When clicking the in this section button a modal should pop open and the cursor should stay within that modal when tabbing.

Screenshots

What areas of the site does it impact?

Acceptance criteria

Quality Assurance & Testing

• I fixed|updated|added unit tests and integration tests for each feature (if applicable).
• No sensitive information (i.e. PII/credentials/internal URLs/etc.) is captured in logging, hardcoded, or specs
• Linting warnings have been addressed
• Documentation has been updated (link to documentation *if necessary)
• Screenshot of the developed feature is added
• Accessibility testing has been performed